Marine subsidies mediate patterns in avian island biogeography
The classical theory of island biogeography , which predicts species richness using island area and isolation, has been expanded to include contributions from marine subsidies, i.e. subsidized island biogeography (SIB) theory . We tested the effects of marine subsidies on species diversity and popul...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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Language: | English |
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2020
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Online Access: | http://dx.doi.org/10.1098/rspb.2020.0108 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2020.0108 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2020.0108 |
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crroyalsociety:10.1098/rspb.2020.0108 2024-09-09T19:31:11+00:00 Marine subsidies mediate patterns in avian island biogeography Obrist, Debora S. Hanly, Patrick J. Kennedy, Jeremiah C. Fitzpatrick, Owen T. Wickham, Sara B. Ernst, Christopher M. Nijland, Wiebe Reshitnyk, Luba Y. Darimont, Chris T. Starzomski, Brian M. Reynolds, John D. Natural Sciences and Engineering Research Council of Canada Tula Foundation Mitacs 2020 http://dx.doi.org/10.1098/rspb.2020.0108 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2020.0108 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2020.0108 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 287, issue 1922, page 20200108 ISSN 0962-8452 1471-2954 journal-article 2020 crroyalsociety https://doi.org/10.1098/rspb.2020.0108 2024-07-15T04:26:38Z The classical theory of island biogeography , which predicts species richness using island area and isolation, has been expanded to include contributions from marine subsidies, i.e. subsidized island biogeography (SIB) theory . We tested the effects of marine subsidies on species diversity and population density on productive temperate islands, evaluating SIB predictions previously untested at comparable scales and subsidy levels. We found that the diversity of terrestrial breeding bird communities on 91 small islands (approx. 0.0001–3 km 2 ) along the Central Coast of British Columbia, Canada were correlated most strongly with island area, but also with marine subsidies. Species richness increased and population density decreased with island area, but isolation had no measurable influence. Species richness was negatively correlated with marine subsidy, measured as forest-edge soil δ 15 N. Density, however, was higher on islands with higher marine subsidy, and a negative interaction between area and subsidy indicates that this effect is stronger on smaller islands, offering some support for SIB. Our study emphasizes how subsidies from the sea can shape diversity patterns on islands and can even exceed the importance of isolation in determining species richness and densities of terrestrial biota. Article in Journal/Newspaper Avian Island The Royal Society Avian Island ENVELOPE(-68.891,-68.891,-67.772,-67.772) British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada Proceedings of the Royal Society B: Biological Sciences 287 1922 20200108 |
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Open Polar |
collection |
The Royal Society |
op_collection_id |
crroyalsociety |
language |
English |
description |
The classical theory of island biogeography , which predicts species richness using island area and isolation, has been expanded to include contributions from marine subsidies, i.e. subsidized island biogeography (SIB) theory . We tested the effects of marine subsidies on species diversity and population density on productive temperate islands, evaluating SIB predictions previously untested at comparable scales and subsidy levels. We found that the diversity of terrestrial breeding bird communities on 91 small islands (approx. 0.0001–3 km 2 ) along the Central Coast of British Columbia, Canada were correlated most strongly with island area, but also with marine subsidies. Species richness increased and population density decreased with island area, but isolation had no measurable influence. Species richness was negatively correlated with marine subsidy, measured as forest-edge soil δ 15 N. Density, however, was higher on islands with higher marine subsidy, and a negative interaction between area and subsidy indicates that this effect is stronger on smaller islands, offering some support for SIB. Our study emphasizes how subsidies from the sea can shape diversity patterns on islands and can even exceed the importance of isolation in determining species richness and densities of terrestrial biota. |
author2 |
Natural Sciences and Engineering Research Council of Canada Tula Foundation Mitacs |
format |
Article in Journal/Newspaper |
author |
Obrist, Debora S. Hanly, Patrick J. Kennedy, Jeremiah C. Fitzpatrick, Owen T. Wickham, Sara B. Ernst, Christopher M. Nijland, Wiebe Reshitnyk, Luba Y. Darimont, Chris T. Starzomski, Brian M. Reynolds, John D. |
spellingShingle |
Obrist, Debora S. Hanly, Patrick J. Kennedy, Jeremiah C. Fitzpatrick, Owen T. Wickham, Sara B. Ernst, Christopher M. Nijland, Wiebe Reshitnyk, Luba Y. Darimont, Chris T. Starzomski, Brian M. Reynolds, John D. Marine subsidies mediate patterns in avian island biogeography |
author_facet |
Obrist, Debora S. Hanly, Patrick J. Kennedy, Jeremiah C. Fitzpatrick, Owen T. Wickham, Sara B. Ernst, Christopher M. Nijland, Wiebe Reshitnyk, Luba Y. Darimont, Chris T. Starzomski, Brian M. Reynolds, John D. |
author_sort |
Obrist, Debora S. |
title |
Marine subsidies mediate patterns in avian island biogeography |
title_short |
Marine subsidies mediate patterns in avian island biogeography |
title_full |
Marine subsidies mediate patterns in avian island biogeography |
title_fullStr |
Marine subsidies mediate patterns in avian island biogeography |
title_full_unstemmed |
Marine subsidies mediate patterns in avian island biogeography |
title_sort |
marine subsidies mediate patterns in avian island biogeography |
publisher |
The Royal Society |
publishDate |
2020 |
url |
http://dx.doi.org/10.1098/rspb.2020.0108 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2020.0108 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2020.0108 |
long_lat |
ENVELOPE(-68.891,-68.891,-67.772,-67.772) ENVELOPE(-125.003,-125.003,54.000,54.000) |
geographic |
Avian Island British Columbia Canada |
geographic_facet |
Avian Island British Columbia Canada |
genre |
Avian Island |
genre_facet |
Avian Island |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 287, issue 1922, page 20200108 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2020.0108 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
287 |
container_issue |
1922 |
container_start_page |
20200108 |
_version_ |
1809900084385546240 |